3 GENERAL NOTES PIPING PACKAGES 1. All the packages and components described in this brochure are optional, extra cost features. Consult your ENVIRO-TEC sales representative for details. Not all components are available on all unit models. See valve package code charts. 2. All standard valve packages and piping components described in this catalog are for chilled and hot water applications. They may also be used with ethylene and propylene glycol solutions up to 50% concentration. 3. VAV piping packages as well as HL, HP, VF, and CDH/CDV fan coil unit packages are factory assembled and shipped loose for field installation and wiring. All VH fan coil unit packages are factory assembled, installed, and wired. 4. HL, HP, and VF unit valve packages are designed to mount directly onto the coil connections. 5. CDH/CDV unit valve packages are configured similar to the HL unit valve packages, and require field location, wiring, and piping to the coil to fit individual application requirements. 6. Control valve actuators are removable, and may be serviced or replaced without removal of the valve body. 7. Control valves are piped normally closed to the coil. For hot water coils, control valves are available normally open Way control valves are piped as mixing valves. 9. All ball isolation valves are furnished with an adjustable memory stop feature and may be used as a balancing valve. 10. When ordered, unions are installed at the water coil, and are available on VAV products, and all fan coil units except VH. Unions must be ordered on both coils of 4-pipe units. Unions are not available separately. 11. All VH units include two flexible stainless steel braided hoses and ball isolation valves per coil. This hose/valve combination provides a "union" type connection to allow coil removal. 12. Pressure/temperature (P/T) ports are located to monitor the pressure and temperature across the coil. 13. Automatic fixed flow controls (FC, FCN, FCS) are available in flow (GPM) ratings as follows: 1/2" = 0.5 to 4.0 GPM in 0.5 GPM increments >4.0 to 6.0 GPM in 1.0 GPM increments 3/4" = 3.0 to 4.0 GPM in 0.5 GPM increments >4.0 to 12.0 GPM in 1.0 GPM increments 1" = 5.0 to 10.0 GPM in 1.0 GPM increments >10.0 to 20.0 GPM in 2.0 GPM increments Individual coil GPM requirements must be specified at time of order. 14. Component performance ratings such as Cv, maximum close-off pressure, operating temperature and pressure, are shown in Component Specifications. 15. Valve and component performance ratings shown are maximum values. Appearance and actual ratings may vary with individual vendor and component size. 16. Adjustable flow setter (AFS) is rated for full shut-off and replaces the return line ball isolation valve on all products except the VH fan coil unit Pipe "change-over" units using a 2-way control valve will include a ¼" "bleed" tube to assure proper changeover thermostat (aquastat) operation. 2-Pipe units ordered with no control option will be considered "heat only" or "cool only" depending on coil rows, and no bleed tube will be provided. 18. Some piping packages may extend beyond the unit drain pan and/or factory auxiliary drip pan. Requirements for field furnished and installed valve package and piping insulation must be determined by others on an individual application basis. The valve package piping and component details shown in this catalog are for standard valves and components. The suitability of all valve packages and components must be determined by others based on individual application requirements. ENVIRO-TEC assumes no responsibility for selection and/or application of valve packages and components. Modulating cooling valve control can increase part load space relative humidity. ENVIRO-TEC does not encourage or endorse modulating valve control for fan coil cooling systems, and is not liable for high humidity problems that may result. Modulating heating valve control may result in low leaving air temperatures while the valve reduces flow and as setpoint is approached. Contact the factory for any requirements not shown in this catalog. CONTROL DEVICE LEGEND Johnson Controls 3

9 SPECIFICATIONS PIPING PACKAGES NOTE: Photos are for representation purposes only. Vendors and models subject to change without notice. Typical 3-Way, 2-Position Control Valve A 2-position water control valve driven open with spring return (bypass) upon a call for heating or cooling to maintain space temperature. Energized, the bypass port is blocked, and water can flow through the unit's water coil to heat or cool the space depending on the supply water temperature. De-energized, water cannot flow through the water coil but is forced to flow through the bypass port, bypassing the coil. Control valves are piped normally closed to the coil as standard (in full bypass). Valve actuators can be line or low (24VAC) voltage. Nominal Size 1/2" 3-Way 3/4" 3-Way 1" 3-Way Body Material: Brass Brass Brass Connection: Sweat Sweat Sweat Pressure Rating (psig): Temperature Rating, F: Cv: Maximum Close-off Pressure (PSIG): N/A N/A N/A Power Consumption: 7VA 7VA 7VA Typical 2-Way Modulating Control Valve A 3-wire floating point, fail-in-place (non-spring return) modulating water control valve, driven open or closed upon a call for heating or cooling to maintain space temperature. In the open position, water can flow through the unit's water coil to heat or cool the space depending on supply water temperature. In the closed position, water cannot flow through the water coil. Factory furnished 2-way valve packages are piped normally closed to the water coil. The floating point control valve is compatible with any 24VAC three-wire signal when three minute time-out logic resides in the valve actuator or system controller. Nominal Size 1/2" 2-Way 3/4" 2-Way 1" 2-Way Body Material: Brass Brass Brass Connection: Sweat Sweat Sweat Pressure Rating (psig): Temperature Rating, F: Cv: Maximum Close-off Pressure Operating Mode: Power Consumption: 1VA 1VA 1VA Contact factory for 3-wire floating, spring return applications. Typical 3-Way Modulating Control Valve A 3-wire floating point, fail-in-place (non-spring return) modulating water control valve, driven open or closed (bypass) upon a call for heating or cooling to maintain space temperature. In the "open" position, the bypass port is closed and water is directed through the unit's water coil to heat or cool the space depending on supply water temperature. In the "closed" position, the service (water coil) port is closed and water is directed through the bypass port. Factory furnished 3-way valve packages are piped as "mixing" valves. The floating point control valve is compatible with any 24VAC three-wire signal when three minute time-out logic resides in the valve actuator or system controller. Nominal Size 1/2" 2-Way 3/4" 2-Way 1" 2-Way Body Material: Brass Brass Brass Connection: Sweat Sweat Sweat Pressure Rating (psig): Temperature Rating, F: Cv: Maximum Close-off Pressure Operating Mode: N/A N/A N/A Power Consumption: 1VA 1VA 1VA Contact factory for 3-wire floating, spring return applications. Johnson Controls 9

11 Balance Bypass Valve (BPV) A plug type valve designed to balance the water flow through the bypass circuit of a 3-way control valve. Manual adjustment is required. No calibration is provided at the valve. Nominal Size: 1/2", 3/4", and 1" Body Material: Bronze Connection: Sweat Pressure Rating (psig): 400 Temp. Rating, F: 200 Cv: Adjustable SPECIFICATIONS PIPING PACKAGES NOTE: Photos are for representation purposes only. Vendors and models subject to change without notice. Unions A fitting used to provide a mechanical connection between the coil and valve package that can be connected, disconnected, and re-connected without the need to cut tubing or unsolder a joint. Unions are installed at the coil on HL, HP, and VF fan coil units. Unions are not available on VH fan coil units. Nominal Size: 1/2", 3/4", and 1" Body Material: Bronze/Copper Connection: Sweat Pressure Rating (psig): 125* Temp. Rating, F: 200* *Contact factory for unions rated at 600 PSIG and 325 F. Y-Strainer (Y-STR) Designed to allow water to flow through a built in screen to filter debris or contaminates from the water system. With the water system isolated, the plug can be removed from the blowdown leg of the strainer and the captured debris removed from the screen. After the plug is replaced, the system can be put back in operation and the strainer will continue to filter the unit s water. Nominal Size: 1/2", 3/4", and 1" Body Material: Bronze Connection: Sweat Pressure Rating (psig): 400 Temp. Rating, F: 150 Screen: 20 Mesh Stainless Steel Johnson Controls 11

12 PIPING PACKAGES SPECIFICATIONS NOTE: Photos are for representation purposes only. Vendors and models subject to change without notice. Cleanout Valve for Y-Strainer (Y-CO) A standard ball valve installed on the strainer blowdown leg to allow flushing the strainer screen without removing the plug in the blowdown leg. This valve has a standard ½" garden hose connection to allow fluid to be piped to a container or remote location during cleaning. Not available separately. Nominal Size: 1/4" Body Material: Bronze Connection: MPT Pressure Rating (psig): 600 Temp. Rating, F: 200 Optional Pressure/Temperature Test Port Locations (P/T) Designed to allow testing of water pressure, differential pressure or water temperature without interrupting the waterside operation of the Fan Coil Unit. Sensor probes ( 1 /8") are not included. Nominal Size: 1/4" Body Material: Brass Connection: MPT Pressure Rating (psig): 400 Temp. Rating, F: 250 Aqua Thermostat The aqua thermostat, also called an automatic seasonal changeover switch or aquastat, is a switch designed to change a room thermostat from heating to cooling and back, based on the temperature of the water supplied to a 2-pipe unit to be used for both heating and cooling. The switch is shipped loose and is mounted in the field on the water tubing using the integral clip or spring. Nominal Size: 1/2", 3/4" and 1" Switch Action: Current Rating: Agency Approval: Ratings may vary with vendor and size. SPDT Switch on temperature rise, 85 F (± 6 F) Switch on temperature fall, 70 F (± 6 F) 120VAC = 5.8 FLA/34.8 LRA (Inductive), 10.0 Amps (Resistive) 208/240VAC = 2.9 FLA/17.4 LRA (Inductive), 2.0 Amps (Resistive) 277VAC = 3.6 FLA/21.6 LRA (Inductive), 1.0 Amp (Resistive) UL Listed, CSA Approved 12 Johnson Controls

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